JAMA : the journal of the American Medical Association
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A genetic variant in the TTR gene (rs76992529; Val122Ile), present more commonly in individuals with African ancestry (population frequency: 3%-4%), causes misfolding of the tetrameric transthyretin protein complex that accumulates as extracellular amyloid fibrils and results in hereditary transthyretin amyloidosis. ⋯ Among a cohort of Black individuals living in the US, being a carrier of the TTR Val122Ile variant was significantly associated with an increased risk of heart failure.
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This study assesses trends in drug overdose deaths among US adolescents aged 14 to 18 years from January 2010 to June 2021, by substance type and race and ethnicity, using data from the Centers for Disease Control and Prevention WONDER database.